Brush



FIG. 1 is a perspective view showing the new design for a brush;

FIG. 2 is a front view thereof, a rear view being a mirror image thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right side view thereof.

The portions of the brush shown in broken lines form no part of the claimed design. In addition, the surface shading illustrated in the drawings is provided merely to highlight the contour of design; it is not intended to be illustrative of texture or gloss. 

CLAIM The ornamental design for a brush, as shown and described. 